<div class="span12">
    <div class="hero-unit" >
        <div class="text-center">
            <p ng-show="!showSignInButton()">Hello {{user.displayName}}</p>
            <!--a class="btn btn-large btn-primary" ng-click="signIn()" ng-show="showSignInButton()">Sign in</a-->
            <a class="btn btn-large btn-primary" ng-click="setRoute('demo')">Go to Demo</a>
        </div>
    </div>
</div>